Abstract: A display device which displays a plurality of objects on a screen has a group configuration storage section for storing association information indicating the association between each of the plurality of objects and one of a plurality of groups, a group priority level storage section for storing group display priority levels which are priority levels for displaying each of the objects associated with one of the groups at the front of the objects associated with the other groups, an object priority level storage section for storing object display priority levels which are priority levels for displaying one of the objects associated with one of the groups at the front of the others, an object priority level changing section for changing the object display priority level while the association information is maintained, and a display section for displaying the plurality of objects according to the group display priority levels and the object display priority levels.

Abstract: Icons indicating operating conditions of each of nodes (computers) constituting a system are individually displayed in the form of a loop. When the total number of the nodes exceeds a total number B of individual displays, nodes corresponding to B are displayed individually, and the rest are displayed in the form of a node collective icon. When a forward button is clicked, a display position of each of the node icons revolves clockwise one by one, a node that has been in the node collective icon is displayed individually at a position of a node icon, and an node icon at a position of a node icon is contained in the node collective icon. By clicking buttons a clockwise continuous revolving display, a counterclockwise revolving display and a counterclockwise continuous revolving display are performed. Node icons are highlighted so as to indicate abnormal conditions of the corresponding nodes.